Q: How does choice of Consistency =
Level affect cluster availability when using secondary indexes?A: =
Because secondary indexes are distributed, you must have CL level nodes =
available for all token ranges in the cluster in order to =
complete a query. For example, with RF =3D 3, when two out of three =
consecutive nodes in the ring are unavailable, all secondary =
index queries at CL =3D QUORUM will fail, however secondary index =
queries at CL =3D ONE will succeed. This is true regardless of cluster =
size.